Sorry I missed Waterfowl Wednesday this week! It was my first night of my Bio 2 Lab, so I didn’t get home until late. To make up for it, I wanted to share some facts about my newest life list addition, the Common Goldeneye.
- Hunters sometimes refer to the Common Goldeneye as the “whistler”. Goldeneyes are rapid flyers, so their wings make a whistling sound when they fly away. They can reach speeds of around 40 mph in flight.
- Common Goldeneyes are part of the genus Bucephala, which is derived from the Greek word boukephalos, meaning “bull-headed”. The other two living species of this genus are the Barrow’s Goldeneye and the Bufflehead.
- Goldeneyes have up to 14 different movements that they can use during courtship displays. One common display is when the male stretches out his neck, suddenly whips it back over his body, and kicks his feet up to cause a splash while making a two-note call. Many males will try to court a single female. (I recommend searching “common goldeneye courtship” on Youtube and watching some of the cool display videos).
- Common Goldeneyes sometimes act as brood parasites and lay their eggs in another Goldeneye’s nest, particularly when nest sites are in short supply.
- Like Wood Ducks, Goldeneye females lay their eggs high up in tree cavities. They commonly use Pileated Woodpecker holes, but will use artificial nest sites if readily available. Chicks will leave the nest cavity one day after hatching. They have quite a fall to endure: some Goldeneye cavities can be as high as 60 feet from the ground!
- During breeding season, Common Goldeneyes are found in the taiga through Alaska and Canada. They spend the winter throughout a majority of the “lower 48” of the United States.
- The Common Goldeneyes are obviously named for their gold-colored eye, however their eyes change colors many times before adulthood. All chicks are born with gray-brown eyes. By five months of age, their eyes will have transitioned from purple-blue, to blue, to green-blue, to pale green-yellow. Males will have their eyes change to golden by adulthood, while females will have a range from yellow to white.